package org.zjt.review

/**
  * DESC    
  *
  * @author
  * @create 2017-06-20 下午2:28
  **/
object Variable extends App {

  //常量
  val a = 12

  var str = "变量字符串"

  val num: Int = 1232

  println(s"内容：$str") //内容：变量字符串



  var xa,b =12

  var c =("zhang",12)

  println(xa + b + c._2 + c._1)
  println(a.isInstanceOf[Int])

  classOf[String]

}
